Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Gretchen Michelle Weigel, LCSW

Social Worker in Wheaton, IL · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1134237571

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Registry record

Entity type Individual (Type 1)

Name Miss Gretchen Michelle Weigel

Credential LCSW

Sex Female

Practice address 222 E Willow Ave, Wheaton, IL, 60187

Phone (630) 784-4824

Fax (630) 682-5276

Enumeration date Aug 27, 2006

Last updated in NPPES May 6, 2014

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 149011006 (IL) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1134237571 active?

Yes, as of the latest NPPES snapshot, NPI 1134237571 is active (record last updated 2014-05-06).

How do I verify Gretchen Weigel's NPI record?

Cross-check NPI 1134237571 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-05-06.